Thread: pgsql: Replace the array-style TupleTable data structure with a simple
pgsql: Replace the array-style TupleTable data structure with a simple
From
tgl@postgresql.org (Tom Lane)
Date:
Log Message:
-----------
Replace the array-style TupleTable data structure with a simple List of
TupleTableSlot nodes. This eliminates the need to count in advance
how many Slots will be needed, which seems more than worth the small
increase in the amount of palloc traffic during executor startup.
The ExecCountSlots infrastructure is now all dead code, but I'll remove it
in a separate commit for clarity.
Per a comment from Robert Haas.
Modified Files:
--------------
pgsql/src/backend/executor:
execMain.c (r1.328 -> r1.329)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/execMain.c?r1=1.328&r2=1.329)
execTuples.c (r1.109 -> r1.110)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/execTuples.c?r1=1.109&r2=1.110)
execUtils.c (r1.161 -> r1.162)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/execUtils.c?r1=1.161&r2=1.162)
nodeSubplan.c (r1.99 -> r1.100)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeSubplan.c?r1=1.99&r2=1.100)
pgsql/src/include/executor:
tuptable.h (r1.42 -> r1.43)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/executor/tuptable.h?r1=1.42&r2=1.43)
pgsql/src/include/nodes:
execnodes.h (r1.207 -> r1.208)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/execnodes.h?r1=1.207&r2=1.208)
On Sun, Sep 27, 2009 at 4:09 PM, Tom Lane <tgl@postgresql.org> wrote: > Log Message: > ----------- > Replace the array-style TupleTable data structure with a simple List of > TupleTableSlot nodes. This eliminates the need to count in advance > how many Slots will be needed, which seems more than worth the small > increase in the amount of palloc traffic during executor startup. > > The ExecCountSlots infrastructure is now all dead code, but I'll remove it > in a separate commit for clarity. > > Per a comment from Robert Haas. Wow, nice. That saved a bucketload of code. ...Robert